The deuteron (nuclei) birefringence effect in a matter and in an electric field and the searches for an EDM of a deuteron (nucleus) rotating in a storage ring
About possibility to observe spin dichroism effect (the effect of tensor polarization acquiring) for the effect of tensor polarization acquiring by a nonpolarized deuteron beam passing through the nonpolarized internal target of Nuclotron
Dispersion theory of nucleon (nucleus) Compton scattering spin polarizabilities and quasi-optical $γ$-ray polarization plane rotation and birefringence effect in a matter with polarized protons (nuclei)
K0 photoproduction on the deuteron and the extraction of the elementary amplitude
研究了氘核上光生K_0的过程,包括YN和KN终态相互作用(FSI),以及π介子介导的γ d --> pi NN --> KYN过程。在阈值区,内含截面的YN再散射效应较大。极化观测值在较大的K介子和超子角下显示出相当大的FSI效应。结果表明,在FSI效应可以忽略的准自由散射区,提取基元γ N -> KY振幅是可能的。此外,在该区域中的截面是大的,表明在该运动学区域中的测量是有利的。
Extracting the photoproduction cross section off the neutron gn-->pi-p from deuteron data with FSI effects
本文从理论上考虑了非相干π介子光生反应gd-->pi-pp在宽能区Eth =< Eg = < 2700 MeV. The model applied contains the impulse approximation as well as the NN- and piN-FSI amplitudes. The aim of the paper is to study a reliable way for getting the information on elementary gn-->pi-p反应截面的情况。对于基本gN-->piN、NN-->NN和piN-->piN振幅,使用GW DAC的结果。没有额外的理论限制。计算的截面dSigma/dOmega(gd->pi-pp)与现有数据进行了比较。本文讨论了用FSI校正因子R从氘数据中提取中子微分截面dSigma/dOmega(gn-->pi-p)信息的方法。计算了在不同光子束能量下,对于“准自由”过程gn-->pi-p,R与出射π介子的π-pCM角θ_1的关系.结果表明,在θ_1 ~ 0附近的小角度处,pp-FSI的S波部分产生相当大的FSI效应R \neq 1,该区域随着光子能量的增加而变窄.在较大的角度下,影响较小(|R-1| <<1),并同意在Glauber方法…